Dotcomformat

I have been thinking of adding a joystick control also, the way that 
Dana explained but never knew how to design the circuit. I'm in the 
midst of redesigning the front panel of my QKB15S. I'm adding a few 
pushbuttons and switches to use as manual gates. I'm great at 
soldering but not designing electronic projects. Larry if you could 
design a simple circuit of your description and point me in the 
direction of locating a joystick I would pay you for it.

Thanks,
Scott


--- In dotcomformat@yahoogroups.com, "Dana Countryman" <dana@d...> 
wrote:
> --- In dotcomformat@yahoogroups.com, Larry Hendry 
> <hendrysr@y...> wrote:
> > Joystick circuits are dirt simple.  What makes the difference is 
> just
> > what feature set you want.  You can build one as simple as 
> one dual
> > op amp and a few resistors.
> > 
> > But, if you're going to all the trouble, why not make something 
> with
> > some control so you do not have to do external processing.
> > 
> > So, I'd want:
> > 
> > -> a +/- bias control with a center detent pot for each axis
> > -> and a gain control for each axis.
> > -> + and - outputs for each axis.
> > 
> > The ideal circuit would accept joystick pots of most any size 
> without
> > changing the circuit.  And, you have to decide if you want to deal
> > with the pushbuttons.
> > 
> > While it seems a waste, you can always use a pair of pedal
> > interfaces.
> > 
> > So, whadda ya want?
> > 
> > Larry H>>
> 
> Hi Larry, et al,
> 
> Personally, I'd like a joystick that could mount LATERALLY, that 
> is, on top of my keyboard, not in a vertical module setting. Maybe 
> attach via velcro.
> 
> Two CV outputs -- one for modulation, and one for vibrato would 
> be all I'd ever want. I find those pitch/mod wheels on keyboards 
> less than desirable. I'd definitely want the joystick to return 
back 
> to "0 volts" when you release it.
> 
> You know much more about these things than I -- I'm not big on 
> circuit design. Guess it would just need 5+- volts out of both 
axis, 
> right?
> What would a push button be for?
> 
> Where could you get the pre-made joystick? I wouldn't mind 
> taking up a module space for the electronics and jacks.
> And a schematic would be excellent, if anyone has one...
> 
> Best,
> 
>  - Dana